Boiler-tube cleaner



(No Model.)

' R. A.. REGESTER.

BOILER TUBE CLEANER. No. 334,468. Patented Jan. 19,1886

Fig.3.. F'iQAJ.

INVENTOR:

Attorney.

UNITED STATES PATENT OFFICE.

ROBERT A. REGESTER', OF BALTIMORE, MARYLAND.

BOILER-TUBE CLEANER.

:JL-ECIFICATION forming part of Letters Patent No. 334,468, dated January 19, 1886.

Application filed April 7, 1885. Serial No. 161,447 (No model.)

To aLZ whom, it may concern.-

Be it known that I, ROBERT A. REGESTER, a citizen of the United States, residing at Baltimore, inthe State of Maryland, have invented certain new and useful Improvements in Boiler-Tube Cleaners, of which the following is a specification, reference being had to the accompanying drawings.

My invention relates to improvements in boiler-tube cleaners in which the cleansing is effected by the action of steam, and it is so arranged that a cut-oil valve is operated automatically, and constructed in such a manner that the steam is ejected through a cylindrical cone-shaped passage, which directs the same against the interior of the tube, as illustrated in the accompanying drawings, in which Figure 1 is a vertical section through the entire device, showing the cutoffvalve open; Fig. 2, a like section view of the device,showing the cut-ofi' valve closed; Fig. 3, a crosssection on line no, and Fig. 4 a detail view of the interior shell.

Similar letters refer to similar parts through, out the several views.

The letter A designates the body of the casing, which is made in the form of a cone, so that it may be used in tubes of various diametcrs without any adjusting, and which comes in contact with the end of the tube, thereby closing the same and preventing any back escape of the refuse. To the apex of this cone is arranged a flaring neck, I), in which is placed a center piece, a, the angles of which correspond to those of the neck b, thus forming a cylindrical cone-shaped passage, m, by which the steam, asit passes through the same, is directed outward against the interior surface of the tube. The center piece, a, is held in its position by the stem a, which is secured to a cross-arm, c, by the nuts 0 and 0 the latter being threaded on the stem a, and the arm a rigidly secured to or cast integral with the casing A, the whole securing the said center piece, a, firmly to the casing.

From the base of the body-piece A projects a second neck, 01, provided with an annular projection, d, to which is secured a suitable ackingring, e, the said neck being bored out, and in which is placed the annular shell B, the exterior of which is turned to form a neat fitting joint between it and the neck, by which one may slide on the other and make as near as possible a steam-tight joint. The shell B is provided with the thread f, by which it is attached to the steam-pipe; the bearing 9,-

through which the stem apasses, and by which the shell and stem are held in their proper relation to each other; an annular seat-,-h,which comes in contact with the packing-ring e, and thereby forms a steam-tight joint at that part when not using the device, as shown in Fig. 1; the slots t, which prevent the shell from turning by coming in contact with the crossarm 0, and a packing-ring, k, which comes in contact with the seat of the valve 1, and thereby preventing the escape of the steam while the device is being removed from one tube to another, the valve Z being secured to the stem a, and thereby rigidly attached to the body A.

The operation is as follows: The device is secured to the steam-pipe, which'is connected to the boiler in the usual manner, and the parts of the device arethen in position to each other as shown in Fig. 2, with the valve Z seated on the packing-ring 70, which prevents the steam from escaping. The device is then inserted in a tube of the boiler until the body portion A comes in contact with the end of the said tube, which prevents that portion from moving any farther forward; but, as the pressure is still applied to the steam-pipe by the operator,the movement of the shell Bis continued inward, which unseats the valve Z, and thus permits the steam to pass into and from the passage m, which effectually removes the deposit from the tube. \V hen the tube has been sufficiently blown or cleansed, the operator releases the inward prcssure he has maintained to hold the device in its place, which permits the steam-pressure to act on the valve Z, thus closing the same and preventing any farther passage of the steam until the device is again placed in another tube and the force or pressure applied to the same by the operator, and r so on, thus affording a device that is simple in its construction and operation, not liable to get out of order, and which may be conveniently and quickly operated.

Having fully described my invention, what I claim, and wish to secure by United States Letters Patent, is-- formed, the stem to, arranged to support the center part, a, the cross-arm c, secured to the casing A, the shoulder or nut c, and the nut e", by which the stem a is securely held to the arm 0, thus centrally supporting the part a,by which the passage m is free from any obstruction.

In a boiler-tube cleaner, the combination of the cone shaped body A, the flared neck b, the center part,a, by which the cylindrical cone-shaped passage in is formed, the neck d, the shell B Sliding therein, the packing-ring e, interposed between suitable seats on the neck (I, and the shell 13, by which the steam is prevented from escaping when the device is operating, and the cutofi' valve Z, by which the steam is cut ot't' when the device is not in operation, as herein specified.

In testimony whereof I affix my signature in presence of two witnesses.

ROBEL'I. A. REGESTER.

\Vitnesses:

JNo. T. MADDQX, \VILLIAM BOYDEN. 

